oa A Critical Analysis of Different Structural Models of the Eastern Cordillera, Colombia

Five published cross sections through the Eastern Cordillera show net shortening values that range from 68 km to 230 km for essentially the same transect through the area of Tunja. Each is compatible with surface exposures and geometrically balanced, but the subsurface structural styles are strikingly different. Low shortening values result from thick-skinned interpretations of an inverted rift basin, medium values are derived from thin-skinned interpretations dominated by fault-bend folds, and the highest value is from an interpretation showing overthrusting of basement-involved nappes.